基于springcloud eureka和zuul实现灰度发布_eureka 灰度

1、eureka服务搭建省略

2、consume——v1服务的配置

server.port=8087
spring.application.name=consume-server
eureka.instance.hostname=${spring.cloud.client.ip-address}
eureka.client.service-url.defaultZone=http://localhost:8080/eureka

spring.main.allow-bean-definition-overriding=true

management.endpoints.web.exposure.include=*
management.endpoint.health.show-details=always

eureka.instance.metadata-map.version=v2
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3、consume——v2服务的配置

server.port=8086
spring.application.name=consume-server
eureka.instance.hostname=${spring.cloud.client.ip-address}
eureka.client.service-url.defaultZone=http://localhost:8080/eureka

spring.main.allow-bean-definition-overriding=true

management.endpoints.web.exposure.include=*
management.endpoint.health.show-details=always

eureka.instance.metadata-map.version=v1

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4、zuul服务
pom依赖

 <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            <version>2.1.6.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
            <version>2.1.6.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>io.jmnarloch</groupId>
            <artifactId>ribbon-discovery-filter-spring-cloud-starter</artifactId>
            <version>2.1.0</version>
        </dependency>
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配置

server.port=8082
spring.application.name=zuul-server
eureka.instance.hostname=${spring.cloud.client.ip-address}
eureka.client.service-url.defaultZone=http://localhost:8080/eureka

spring.main.allow-bean-definition-overriding=true

management.endpoints.web.exposure.include=*
management.endpoint.health.show-details=always

zuul.routes.consume.path=/consume/**
zuul.routes.consume.serviceId=consume-server
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filter

package com.example.zuulserver.filter;

import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
import com.netflix.zuul.exception.ZuulException;
import io.jmnarloch.spring.cloud.ribbon.support.RibbonFilterContextHolder;
import org.springframework.cloud.netflix.zuul.filters.support.FilterConstants;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;

/**
 * @author code
 * @Date 2021/9/27 17:12
 * Description 灰度发布拦截器
 * Version 1.0
 */
@Component
public class MyZuulFilter extends ZuulFilter {
    /**
     * 过滤器的四种类型至一
     * pre 在请求之前执行
     * route 在路由中执行
     * post 在请求后执行
     * error 在发生错误的时候执行
     * @return
     */
    @Override
    public String filterType() {
        return FilterConstants.ROUTE_TYPE;
    }

    @Override
    public int filterOrder() {
        return 1;
    }

    @Override
    public boolean shouldFilter() {
        return true;
    }

    @Override
    public Object run() throws ZuulException {
        RequestContext currentContext = RequestContext.getCurrentContext();
        HttpServletRequest request = currentContext.getRequest();
        // 正常的逻辑就是先获取token，在解析token 获取用信息，查看是否已经具备了内测的资格；
        // 为了方便演示这里就写死了

        String version = request.getParameter("version");
        if("v1".equals(version)){
            RibbonFilterContextHolder.getCurrentContext().add("version","v1");
        }else if("v2".equals(version)){
            RibbonFilterContextHolder.getCurrentContext().add("version","v2");
        }else {
            RibbonFilterContextHolder.getCurrentContext().remove("version");
        }
        return null;
    }
}

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5、测试

直接访问——轮询


指定版本v1访问

指定版本v2访问